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Information × Registration Number 0222U003214, 0117U001260 , R & D reports Title Increasing of ductile and plastic properties of weld metal of two-phases low alloy steels based on research and regulation of structure formations popup.stage_title Head Holovko Viktor V., Доктор технічних наук Registration Date 21-02-2022 Organization E.O.Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description2  The aim of the work was to create welding materials with high environmental performance and technological processes with objective control of welding parameters for the production of welded metal structures from high-strength low-alloy (VMNL) new generation steels in transport and energy engineering. To achieve this goal, an algorithm for numerical description of weld metal images based on digital multifractal parameterization was developed, weld metal structures were analyzed based on multifractal parameterization method, and a method of fractal parameterization of weld metal structure was developed. pilot studies on fractal parameterization of weld metal structure. . flux-cored wire core to increase the visco-plastic properties of the metal of welded joints of low-alloy steels. Research and optimization of systems of alloying and microalloying of weld metal through cores of flux-cored wires and technologies of welding VMNL steels that meet the requirements for mechanical properties of welded metal from steels of strength classes from 550 MPa to 600 MPa. Development of technological regulations for welding of standard joints. Research and optimization of systems of alloying and microalloying of weld metal through cores of flux-cored wires and technologies of welding VMNL steels that meet the requirements for mechanical properties of welded metal from steels of strength classes from 550 MPa to 600 MPa. Development of technological regulations for welding of standard joints. Normative and technological documentation for industrial production of developed welding materials has been developed. Experimental and industrial batches of low-hydrogen coated electrodes type E7018 with improved sanitary and hygienic performance and flux-cored wires and welding technology VMNL steels that meet the requirements for mechanical properties of metal welds from steels of strength classes from 550 MPa to 600 MPa. Product Description popup.authors Kotel'chuk Oleksandr Sergijovych Palʹtsevych Andriy P Synyuk Volodymyr S Skoryna Mykola V Stepanyuk Sergiy Mikolayovich Shlepakov Valerii M popup.nrat_date 2022-03-09 Close